16075138 has 4 divisors (see below), whose sum is σ = 24112710. Its totient is φ = 8037568.

The previous prime is 16075127. The next prime is 16075151. The reversal of 16075138 is 83157061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14722569 + 1352569 = 3837^2 + 1163^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4018783 + ... + 4018786.

Almost surely, 2^16075138 is an apocalyptic number.

16075138 is a deficient number, since it is larger than the sum of its proper divisors (8037572).

16075138 is an equidigital number, since it uses as much as digits as its factorization.

16075138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037571.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 16075138 is about 4009.3812490209. The cubic root of 16075138 is about 252.3780439057.

The spelling of 16075138 in words is "sixteen million, seventy-five thousand, one hundred thirty-eight".